49 Tiles

49 Tiles is a fun puzzle game where you toggle light tiles to turn them all on. But be careful! Changing a tile will also change the tiles touching its corners. The puzzle gets harder with each level. If you decide to upgrade to the premium version of this game, your progress and saved level will transfer over automatically, so have no fear! (The premium version has no ads, 3 more tile colors, and 90 more levels, and can be found at https://play.google.com/store/apps/details?id=com.jpennsoftware.fourtyninetilespremium )